On Mon, Nov 13, 2023 at 11:33 AM Mark Filipak <markfilipak.i...@gmail.com> wrote:
> On 11/13/23 04:04, Paul B Mahol wrote: > > On Mon, Nov 13, 2023 at 4:33 AM <markfilipak.i...@gmail.com wrote: > >> Why are the target PTSs out of order? > >> Why are there no 0 or 1001 DTSs? > > > > DTS is different from PTS. > > Indeed: Decoder versus Presentation. > '-bsf:v setts' is before decoding, so there's both PTS & DTS, right? > '-vf setpts' is after decoding, so there's no '-vf setdts', right? And > '-vf setpts' applies to the > pictures going to the encoder, right? > Is PTS > DTS? Or is PTS <= DTS? I've seen it both ways in professional > DVDs. > What do you say, Paul? > > > And you should probably reorder DTS by keeping original order - just do > > offset and not by using packet number. > > Then, of what use is '-bsf:v setts=pts=xxxx:dts=xxxx'? Why do they exist? > > I designed video hardware/chips at Atari in the early 1980s, so I know > every detail of PAL & NTSC > and I designed state machine sequencers to generate the signals -- pretty > easy, actually. The > engineers before me screwed the signals up and got Atari a bad name for a > while. > And I'm really Elon Musk and I designed what you can only dream on. > > Maybe I don't understand how 'bit stream filter' got its name. Everything > is a bit stream, so I > don't really know to what 'stream' 'bsf' refers to. I've assumed that > 'bsf' refers to the packet > stream prior to decoding. Is that right, Paul? > > _______________________________________________ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". > _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
